DS will be 3 in March and I really want to get moving on the whole potty training thing. He is so busy and can get so focused on what he's playing with that I know that will be a challenge. We attempted potty training over Christmas break but we just did not set ourselves up well and gave up quickly. Also on day 2 he was scared of sitting on the potty. Now, he will sometimes say if he is trying to poop and I will try to get him on the potty but he freaks out saying he's scared and doesn't want to. He has pooped on the potty twice (most recently he was holding it and seemed constipated) but has never peed on the potty.

How do we overcome the fear and get him excited about potty training?